模拟不同方向的第二阶段粒子对合金微结构影响的相场模拟
Yan Wu1, Jinlin Xiong1, Shuo Wang1
1School of Mechanical Engineering, Wuhan Polytechnic University, Wuhan 430023, China.
Materials (Basel, Switzerland)
|September 28, 2023
概括
第二阶段颗粒的形状和混合物在化过程中显著影响AZ31合金中的颗粒生长. 圆形和棒形颗粒比球形颗粒提供更好的粒度提炼.
科学领域:
- 材料科学 材料科学 材料科学
- 金工业是一种金工业.
- 计算材料科学科学 计算材料科学
背景情况:
- 合金AZ31对于轻量化应用至关重要.
- 控制谷物生长对于优化合金性能至关重要.
- 第二阶段粒子可以影响微观结构的演变.
研究的目的:
- 为了研究第二阶段粒子形状和方向对AZ31合金中的谷物生长的影响.
- 为了评估不同粒子形态的谷物精炼效率.
- 了解混合颗粒形状对谷物精炼的影响.
主要方法:
- 使用相位现场方法模拟.
- 在350°C下进行了100分钟的火模拟.
- 分析重点是粒子形状,方向和体积分数.
主要成果:
- 颗粒形状显著影响谷物生长;圆形和棒形颗粒比球形颗粒更加精细.
- 第二阶段颗粒的方向对谷物生长的影响微不足道.
- 混合不同的颗粒形状可以提高谷物精炼,特别是减少球形颗粒体积分数.
结论:
- 在AZ31合金中,颗粒形状是控制谷物生长和微观结构的关键因素.
- 优化颗粒形状和成分可以提高谷物精炼.
- 阶段场方法为化过程中微观结构演变提供了宝贵的见解.
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